Generator Buying Guide for East Texas Homeowners: Standby vs. Portable vs. Solar Battery

If you lived through Winter Storm Uri in February 2021, you already know the answer to "do I need backup power?" The question now is which kind, how big, and what it's going to cost you to do it right.

This guide is written specifically for homeowners in Liberty County, Chambers County, and the Harris County communities of Baytown, Crosby, and Highlands — areas that sit squarely in Entergy Texas and CenterPoint Energy territory and have dealt with more than their fair share of outages from hurricanes, ice storms, and simple summer thunderstorms that knock a line down for three days. We'll cover the three main backup power options, how to size them, what transfer switches do and why you need one, and what real installation costs look like in 2024.

What Are My Backup Power Options as a Texas Homeowner?

You've got three real options: portable generators, standby generators, and solar-plus-battery systems. Each one serves a different type of homeowner with a different budget and a different set of priorities.

Portable generators run on gasoline, propane, or dual fuel. You pull them out of the garage when the lights go out, fire them up outside, and run extension cords — or connect them through a transfer switch — to keep the essentials going. They cost between $500 and $3,500 for a quality unit and take zero installation. The Generac GP6500, Champion 3500-watt dual fuel, and Honda EU7000iS are among the most popular models sold at local hardware stores in Baytown and Humble.

Standby generators are permanently installed outside your home, connected to your home's electrical panel, and wired into a natural gas or propane fuel supply. They start automatically within 10 to 30 seconds of a power failure — no running to the garage, no extension cords. Units range from 10 kilowatts for a smaller home up to 26 kilowatts or more for a large two-story. Installed costs in the Liberty County and Chambers County markets typically run $6,000 to $15,000 depending on size and panel complexity.

Solar-plus-battery systems pair rooftop solar panels with a battery bank — most commonly the Tesla Powerwall 3 or Enphase IQ Battery 5P — to store daytime energy for use at night or during an outage. A whole-home system capable of running your HVAC through a 24-hour outage will run $25,000 to $45,000 installed before any federal tax credit. After the 30% federal Investment Tax Credit, you're closer to $17,500 to $31,500.

Here's the honest take: most East Texas homeowners are best served by a properly sized standby generator. Solar-plus-battery is a real option and getting more competitive every year, but if your goal is surviving a week-long outage after a hurricane — which is a realistic scenario in Chambers County — battery capacity still has hard limits that natural gas doesn't.

How Do I Know Which Generator Size I Actually Need?

Sizing a generator wrong is one of the most common and expensive mistakes homeowners make.

The calculation starts with your loads — the electrical devices you want to power during an outage. Every appliance has a running wattage and, for motor-driven equipment like AC units and refrigerators, a higher starting wattage that spikes for a few seconds when the motor kicks on. You have to account for both.

Here's a practical breakdown for a typical 2,000-square-foot home in East Texas:

• Central AC (3-ton unit): 3,500 watts running / 8,000 watts starting
• Refrigerator: 700 watts running / 1,200 watts starting
• Well pump (if applicable): 1,000 watts running / 2,000 watts starting
• Lights and outlets (partial): 1,500 watts
• Window unit as backup: 1,440 watts running

Add those up and you're looking at roughly 8,000 to 10,000 running watts with starting surge potential near 14,000 watts. That means a 10-kilowatt standby or a 12-kilowatt unit is your minimum for a comfortable outage — not a luxury option.

A lot of homeowners in the Crosby and Highlands area try to get by with a 5,500-watt portable and then wonder why they can't run the AC. That's not a generator problem. That's a math problem.

For standby units, the Generac 18kW Guardian Series and the Kohler 14RESAL are the two most commonly installed models in this market. If your home is over 2,500 square feet or you have an electric range, electric water heater, or home office with server equipment, plan on 20kW or larger.

Propane vs. natural gas for standby units: Natural gas is the cleaner connection if CenterPoint or Entergy has gas service at your address. Propane gives you more flexibility in rural Liberty County where gas lines don't reach — but you'll need a properly sized tank. A 500-gallon propane tank running a 14kW generator at 50% load will last roughly 6 to 7 days. For extended outages, a 1,000-gallon tank is smarter.

What Is a Transfer Switch and Do I Actually Need One?

A transfer switch is required by law in Texas. Full stop.

More specifically, the National Electrical Code — adopted by the state and enforced through the Texas Department of Licensing and Regulation (TDLR) — requires that any generator connected to your home's wiring must be connected through a transfer switch. This isn't optional, and it isn't just bureaucratic paperwork. It's a life-safety issue.

Here's why it matters: without a transfer switch, a generator backfeeds power into the utility lines outside your home. Entergy and CenterPoint linemen working to restore power after a storm can be electrocuted by that backfed current. People have died because of improperly connected generators. That's not a scare tactic — it's documented.

There are two types:

Manual transfer switches are less expensive — typically $300 to $600 installed — and require you to physically flip the switch when you connect your portable generator. They're a perfectly fine solution for portable generator setups and are commonly used in homes across Baytown and the Highlands area.

Automatic transfer switches (ATS) are wired to your standby generator and detect a power outage automatically, switching your home from utility power to generator power without any action on your part. This is what makes a standby generator actually function the way it's supposed to. ATS units are typically included in standby generator packages or add $500 to $1,200 to the cost.

One more point: if you have a whole-house interlock kit installed instead of a proper transfer switch, get it inspected by a TDLR-licensed electrician. Interlocks are code-compliant in some configurations, but a lot of DIY installations cut corners in ways that create problems.

How Much Does Generator Installation Cost in East Texas?

Installation costs in Liberty County, Chambers County, and eastern Harris County vary more than most homeowners expect, and the reasons matter.

Portable generator with manual transfer switch: $800 to $1,500 total, including the switch and a licensed electrician's labor. The generator itself is separate. This is the most accessible entry point and a legitimate backup power solution for budget-conscious homeowners.

Standby generator, full installation: Here's where it gets more detailed. The generator unit itself runs $3,000 to $8,500 depending on kilowattage and brand. Add installation labor, which in this market runs $1,200 to $2,500. Add the automatic transfer switch if not included: $500 to $1,200. Add a concrete pad or gravel bed: $300 to $600. Add natural gas plumbing connection or propane tank and regulator setup: $400 to $1,800.

All in, budget $6,500 to $14,000 for a properly installed standby generator in the Baytown to Liberty corridor. Homes with complicated panels, older wiring, or long distances between the gas meter and generator location will land at the higher end.

Solar-plus-battery system: This is where numbers get wide in a hurry. A system sized to run a typical East Texas home through a 24-hour outage — including the AC — requires roughly 20 to 30 kilowatt-hours of battery storage and 8 to 12 kilowatts of solar. A Tesla Powerwall 3 holds 13.5 kWh, so you'd need 2 to 3 units just for battery storage, at roughly $11,500 to $17,000 for the Powerwalls alone before installation labor.

Full system installed costs in this market run $28,000 to $45,000. After the federal 30% ITC, that drops to roughly $19,600 to $31,500. Texas has no additional state-level solar tax credit, though some local utilities offer rebates — CenterPoint had limited rebate programs through 2023, so it's worth checking current availability.

My opinion: for most middle-income homeowners in Chambers County or the Crosby area who want reliable backup power and can afford a one-time investment in the $8,000 to $12,000 range, a 16kW or 18kW standby natural gas generator is the right answer. It's proven technology, it runs as long as gas keeps flowing, and it doesn't require you to ration power usage during a 5-day outage.

Are Portable Generators Worth It, or Are They More Trouble Than They're Worth?

Portable generators earn their keep if you approach them honestly.

They are not a whole-home solution. A 6,500-watt portable can run your refrigerator, a window unit, some lights, phone chargers, and maybe a small TV. It cannot run your central HVAC, electric range, and electric water heater simultaneously without tripping itself off or burning out.

The operational reality of portable generators is also something you should think through before buying. They require gasoline — which disappears from every station in Baytown and Crosby within 12 hours of a major storm warning. Dual-fuel models that run on propane as well as gasoline give you a real advantage here. The Champion 3500-watt dual fuel (around $550 at Home Depot in Humble) and the DuroMax XP13000HX (a 13,000-watt powerhouse at about $1,800) are both worth looking at in this price category.

Carbon monoxide kills people every storm season in Texas. This is not overstated. FEMA documented 85 generator-related CO deaths across the United States during Winter Storm Uri. Every portable generator must run outside, at least 20 feet from any window, door, or vent — no exceptions, no "just for a few minutes" situations in the garage.

Storage and maintenance are also real commitments. Gasoline left in a generator's carburetor for more than 30 days starts to degrade and gum up the fuel system. Either run the generator dry after each use or treat the fuel with Sta-Bil and run it monthly. Most portable generators that fail during an emergency fail because of carburetor problems from improper storage.

If you live in a neighborhood with HOA restrictions — and parts of the Baytown area have them — check the rules before you buy a standby unit. Portable generators typically sidestep those restrictions since they're not permanent installations.

What's the Deal With Solar and Battery Backup in East Texas?

Solar-plus-battery is a real backup power option, but it has genuine trade-offs that don't always get mentioned in the sales pitch.

East Texas gets solid solar resource — Liberty County and Chambers County both average around 4.5 to 5.0 peak sun hours per day, which is enough to make solar financially reasonable. The issue for backup power specifically is not solar generation — it's battery capacity and what happens on the fourth day of a cloudy outage following a hurricane.

Here's the math problem: a 3-ton central AC unit running 8 hours a day consumes about 28 kilowatt-hours. Two Tesla Powerwall 3 units give you 27 kilowatt-hours of usable storage. So on a cloudy post-storm day when your panels generate minimal power, you're choosing between running the AC and having power for everything else. That's a real constraint.

This is not a reason to dismiss solar-plus-battery. It's a reason to size it correctly and set realistic expectations. Families who install a properly sized system — 3 Powerwalls, 10kW of solar — and who are willing to manage their consumption during extended outages will be genuinely comfortable through most Texas weather events.

The Enphase IQ Battery 5P is worth mentioning alongside Tesla because it's modular. You can start with 5 kilowatt-hours of storage and add more later. For homeowners who want to grow their system in stages, that flexibility matters.

One thing ERCOT's grid stress during Uri clarified: solar panels on your roof don't help you if they're connected to a standard grid-tied system without battery backup. Grid-tied solar systems shut off automatically during outages to protect linemen. Without a battery and a proper islanding setup, your solar panels are useless during a power failure. This surprises a lot of homeowners who assumed otherwise.

What Fuel Source Should I Choose for My Generator?

Fuel choice is one of the most consequential decisions you'll make, and it's worth thinking through before you buy anything.

Natural gas is the most convenient fuel for standby generators in areas where CenterPoint or Entergy has gas infrastructure. The supply doesn't run out, there's no tank to fill, and the generator runs indefinitely as long as the gas service stays live. The concern — and Uri made this concrete — is that natural gas supply can be interrupted during extreme cold. During Uri, gas well freeze-offs across the Permian Basin and Central Texas caused widespread supply disruptions. Baytown and Liberty County were affected. If your standby generator lost gas pressure during Uri, it stopped running too.

Propane solves the supply interruption issue for rural and suburban homes. You own the fuel on-site. A 500-gallon tank gives you significant runtime, and a 1,000-gallon tank bought right before hurricane season gives you real peace of mind. Propane does cost more per BTU than natural gas, and you need to manage tank levels proactively — especially in October and November before storm season peaks.

Dual fuel and tri-fuel portable generators offer gasoline as the primary fuel with propane as a backup option. For portable use in Crosby and Highlands, this is the smartest configuration. Gasoline is more widely available locally, but propane from a 20-pound tank can bridge you through the first 8 to 10 hours when gas stations are swamped.

Diesel generators are common in commercial settings and worth considering for homeowners with very large power needs — pool equipment, large shops, or medical equipment that demands 24-hour runtime. Diesel is energy-dense and stores longer than gasoline with proper treatment, but residential diesel standby units are less common and harder to service locally.

What Permits and Inspections Are Required in East Texas?

This question trips up a lot of DIY-minded homeowners, and cutting corners here is genuinely risky.

Any standby generator installation in Texas requires a permit. The process varies slightly by jurisdiction — Liberty County, Chambers County, and incorporated cities like Baytown and La Marque each have their own permitting offices — but the requirements are consistent: a licensed electrical contractor must pull the permit, complete the installation, and pass inspection before the installation is considered code-compliant.

TDLR (Texas Department of Licensing and Regulation) licenses the electricians who do this work. When you hire someone to install a transfer switch or wire a standby generator, ask for their TDLR license number and verify it at the TDLR website. Takes 30 seconds and protects you from unlicensed work that won't pass inspection.

Homeowners sometimes ask if they can install a standby generator themselves to save money. The honest answer: not legally in most Texas jurisdictions. The electrical connection and transfer switch work requires a licensed electrician. Gas plumbing requires a licensed plumber or gas fitter. You can pour your own concrete pad and handle site prep, but the connections to your home's systems need licensed trades.

Budget for the permit itself — typically $150 to $400 depending on the jurisdiction and system size — and budget time for inspection scheduling, which can take 1 to 3 weeks in busy post-storm periods when every inspector in the county is backlogged.

One practical note for Chambers County homeowners specifically: if your property is in an unincorporated area, you may be under county jurisdiction rather than a city building department. Call the Chambers County building department at the beginning of the process to confirm who issues your permit. Don't assume.

How Do I Maintain a Generator So It Actually Works When I Need It?

A generator you haven't run since 2019 will fail you in September 2024. That's not a maybe.

Standby generators solve most of this problem automatically — they're designed to run a self-test cycle once a week for 20 to 30 minutes, which keeps fuel flowing, lubricates the engine, and exercises the battery. Most Generac and Kohler units allow you to set the test day and time through the unit's control panel. Set it and leave it.

Even with weekly exercise cycles, standby generators need annual maintenance: oil and filter change, spark plug inspection, air filter replacement, and a battery check. Budget $150 to $300 per year for a service contract, or do it yourself if you're mechanically comfortable. Generac's HomeLink mobile app can monitor your unit's status and alert you to fault codes — useful for homeowners in the Highlands area who travel for work.

Portable generators need more active management from you. Before storm season (June through October in this region), run your portable generator under load for at least an hour. Check the oil. Replace the spark plug if it's been more than a year. Drain and replace the fuel, or add fresh Sta-Bil-treated fuel and run it through the system. This is a September task, not an October task.

For solar-plus-battery systems, maintenance is minimal — panels need to be cleaned of pollen and debris every 3 to 6 months, and inverter firmware updates are worth checking annually. The Enphase system sends diagnostic data continuously and will flag any underperforming panel or battery module.

What Should I Buy First If My Budget Is Limited?

Start with a quality dual-fuel portable generator and a proper manual transfer switch.

For around $1,200 to $2,000 total — generator plus switch plus licensed install — you have a legitimate backup power solution that can keep your refrigerator running, charge devices, power a window unit, and run lights through most outages. That's not a permanent solution, but it's a real one.

Then save toward a standby unit. Many homeowners in Liberty County and the Crosby area do exactly this: buy a portable first, gain experience understanding their actual power needs during an outage, and then size and install a standby unit 2 to 3 years later with better information and a bigger budget.

If you're in the Baytown area and connected to CenterPoint's natural gas grid, a 14kW or 18kW Generac standby connected to your gas line is probably the most practical long-term investment for the money. It will run indefinitely (assuming gas supply), starts automatically, and requires almost no effort on your part during an outage.

Don't let the perfect be the enemy of the good. A $700 Champion dual-fuel portable in your garage today protects your family better than a $12,000 standby you plan to buy next year but haven't ordered yet. East Texas storms don't work on your timeline.

*Texas Service Pros covers home systems, maintenance, and contractor advice for homeowners across East Texas and the greater Houston area. All cost estimates reflect 2024 market conditions in Liberty, Chambers, and Harris Counties.*